Monolithic wall and mold therefor



. May 5, 1925. 1,536,892

C. T. LARSON MONOLITHIC WALL AND MOLD THEREFOR Filed March 27j 1924 z sheets-sheet 1 :ELE-HE milla /g :am /f 4 @woeafo/w- @Ww v Wup May 5, 1925. 5 1,536,892

c. T. LARsoN MoNoLITHIc WALL AND MOLD THEREFOR Filed Maren 2v. 1924 2 sheets-sheet 2 @ad fai/w0- am so l Patented Mayy 5, 1925.

'umfri-.offsrATrsg PATENT OFFICE, I

cAnL r.; Lawson,V orMoLINE, ILLINOIS.

`MoNoLrmHIc WALL AND MOLD THEREFQR.

Applicationmea March 27,1924.'Y serial no. 702,422.

v wMy invention 'relates totheconstruction ofmonolithic walls from cement and relates `more `parin'cularly to walls in which air rspaces arel formedrbetween the outer and inner sides of the wall, by1suitab1y shaped cores of cardboard' or` other desired ymaterial, which are left inthe completed wall. The principal object of the inventionr 1s to provide novel devices for supporting any-v desiredl number of the ycores one iupon'the other,in spaced relation with thesides of a `1no1d,into whichv the cement is pouredto forin `the wall. f

.videua simpleand inexpensive, `yet an effi` drawings.'

cientand vervy desirablemold, within which the wallisl cast.

`W'ithithe foregoing in. view, the invention :resides in the novel subject matter hereinf after described and claimed, the description being supplemented by the accompanying Figure l is' a vertical transverse sectional vview of a wall and mold constructed in accordance withvmy invention; Figure`2 is a "horizontal-sectional view on line 2er-2 ofFigjl. n Figures 3 and 4 are verticalv longitudinal sectional' views as indicated by lines 3--3 and 4 4 of rig.k 1.

Figures 5 and 57 are perspective views of the holders and spacers for-the -coresl Figure k6 is a perspective view showing three sections of the mold.y

In the drawings" above 'briefly described,

' the numerall ly designates a moldfor a ces ment wall, and while a mold of one specific construction is shown, -it will be obvious that certain features hereinafter described,

` can be used in connection with any/ form of s mold.

atL

y i The numerals 2 designate a plurality of hollow cores disposed wit-hin the moldin spaced relation with its opposite sides. These cores may be formed of numerous shapes, sizes and materials,-but I prefer to construct them of'suitable water-proof card- Vdescribed below, attention 4being nowv directed more particularlyto Fig. 5.

The numeral 3 designates an elongated strip of 'sheet metal having an upwardlv bent flange 4 at one edge of each of its ends and a downwardly bent iiange 5 at the other *edge of each'- of its ends, the distance 'between the inner ends of said iiangesbeing suiicient to permit reception of one ofl the cores2 between said ends.` The interme diate portion of the strip 3 is shown 'as provided with parallel vertical flanges' 6 ofv less heighty than the other flanges, said flanges Another object of the 'invention is tor pro- 6 being of such a Vheight vor width asunto space the superposed cores 2 the proper distances from each other. 1

'In'building awall, a portion of the mold l is assembled from the ground to any desired level, a plurality `of the strips 3' are placed transversely in thebottom of said mold with their ends abutting the mold walls, one elongated 'core 2or possibly a series of short-er cores are placed upon these strips between theendmost upwardly projecting flanges thereof, so that the sides of the core are properly spaced from the walls lof the mold, a second series of the strips 3 is then placed upon the core or cores previously inserted, a second core ora row of short cores isthen placed upon 'the second series of strips,and so on, until the cores` are about even with the top of thel mold.

Then, green cement ispoured into said mold and it will fill the spaces between, the mold walls of the core and will run in between the vertically lspaced cores, so that when the cement sets,` a monolithic wall is pro` spaced air passages. i

'In some instances, 1t 1s not desired to have vided, which is formed with vertically ioo the inner and outer portions 7' and 8 of v fing by any suitable means.

the cement. wall, connected by webs of cement 9, such as shown in Figs. 1 and To produce a wall of this type, the strips shown in Fig. 5 may be used, which strips will not vertically space the cores to any appreciable extent. In this figure, the numeral 3 designates a flat metal strip hav ing upstanding flanges 4 at the ends of one edge and downwardly extending flanges 5a at the ends of its other edge, the intermediate portion of said strip being free of flanges, such as those above designated by the numeral 6.

The mold 1 preferably comprises a plurality or rectangular sections 10 formed of suitable gauge sheet metal, the upper and lower edges of said sections being bent laterally outward to provide flanges 11 which are in turn bent at their free edges to provide vertical ilanges 12. `When the mold sections are set one upon another, the flanges 11 contact with each other and the flanges-12 are then adapted to engage the inner sides of suitable vertical studs 18, to which said flanges may be clamped by suitable C-clamps 14. Preferably, the contacting flanges 11 are formed with registering openings 15 through which one end of each clamp may pass, so that said end may jointly contact with two adjacent flanges 12, as seen in Fig. 1.

The studs 13 may be held against spread- Preferably, however, longitudinally tapered tie-bars 16 are passed through openings 17 in said studs and through similar openings 18 in the mold sections and the cores 2. Each of the rods 16 may well have a shoulder 19 at one end to engage the outer side of one of the studs 13, and may be provided with a removable locking plate 2O at its other end to engage the outer side of the other stud. After the wall has set sufficiently to permit the mold to be removed, the locking plates 20 of the several bars 1G are removed and said bars are driven out of place. By then removing the clamps 14, it will be Seen that all of the mold sections may be disassembled.

Preferably, in addition to the clamps above described, additional C-clamps 21 are used at suitable intervals, to clamp the horizontal flanges 11 in contact with each other.

By carrying out my invention, an efiicient monolithic wall may be easily and inexpensively produced and obviously` the inner' and outer sides of this wall may be finished in any desired manner.

As excellent results are obtainable from.

the details disclosed, they are preferably followed, but within the scope of the invention as claimed, numerous changes may be made.

I claim: 1. Means for forming air spaces in a poured cement wall, comprising a plurality of superimposed cores permanently disposed between vertical mold walls, and a. plurality of transverse strips permanently supporting said cores one upon another, all of said strips being spaced widely apart vertically and being of an inlinitesimal vertical dimension with respect to the height of any core.

2. Means for forming air spaces in a poured cement wall, comprising a plurality of superimposed cores disposed permanently between vertical mold walls, and a plurality of transverse strips permanently supporting said cores one upon another, said strips abutting said mold walls and having shoulders engaging the outer sides of said coresto hold the latter in properly spaced relation with said mold walls, all of said strips being spaced widely apart vertically and being of an infinitesimal vertical dimension with respect to the height of any core.

3. Means for forming air spaces in a poured cement wall, comprising superimposed cores disposed between vertical mold walls, and transverse strips between said superimposed cores and supporting them one upon another, the ends of said strips having oppositely bent vertical flanges engaging the outer sides of said cores to space the latter from said mold walls kwith which the ends of said strips contact.

4. A structure as specified in claim 3; said strips having parallel flanges along intermediate portions and extending in the same direction therefrom, said parallel flanges being of less height than the other flanges extending in the same direction.

5. A spacing device of the class described comprising an elongated strip adapted to be interposed between upper and lower cores and to abut spaced mold walls at its ends, said strip having an upwardly bent flange at each end and a downwardly bent flange at each end, said flanges being` adapted to engage the cores to hold the latter in properly spaced relation with the mold walls, the intermediate portion of said strip having vertically bent parallel flanges extending in the same direction therefrom, said parallel flanges being of less width than the other flanges extending in the same direction.

6. A mold comprising a plurality of rectangular metal sections having their upper and lower edges bent outwardly to provide horizontal flanges, said flanges of adjacent sections being adapted to be clamped together, the outer edges of said flanges having` vertically extended flanges adm )ted to be clamped against vertical studs, said horizontal flanges having regis tering openings adjacent said vertical flanges to permit one end of the clamp to jointly engage adjacent vertical flanges.

lOO

7. A spacing device of the class described comprising an elongatedstrp adapted to be interposed between upper and lower cores and to abut spaced mold walls, the ends 0i l said strip having upwardly and downwardly bent portions providing inwardly facing shoulders tov engage opposite sides ofk the` cores, said strip also having avertically bent portion between said shoulders to space said cores apart vertically. 1Q

In .testimony whereof I have hereunto aflixed my signature.

CARL rr. nARsoN; 

